275/40R19 vs 295/40R19
Going from one to the other changes the overall height by +2.3 %. That is inside the 3% band, so it fits and the speedometer stays close.
Side by side
| Measure | 275/40R19 | 295/40R19 | Change |
|---|---|---|---|
| Overall height | 27.7" | 28.3" | +2.3 % |
| Sidewall | 4.33" | 4.65" | +7.3 % |
| Section width | 275 mm | 295 mm | +7.3 % |
| Circumference | 86.9" | 88.9" | +2.3 % |
| Revs per mile | 729 | 713 | -2.3 % |
| Axle height | 13.83" | 14.15" | +8.0 mm |
| Approved rim width | 7.5–10" | 8.5–11" | overlap 8.5–10" |
Both are approved on a rim 8.5" to 10" wide. If yours is in that band, this is a tire change and nothing else.
What the speedometer will say
Calibrated for 275/40R19. Fit 295/40R19 and the needle stops telling the truth.
| Needle says | You are doing | Out by |
|---|---|---|
| 30 mph | 30.7 mph | +0.7 |
| 50 mph | 51.1 mph | +1.1 |
| 70 mph | 71.6 mph | +1.6 |
| 90 mph | 92.0 mph | +2.0 |
The odometer drifts with it. Ten thousand miles on the dial are really 10,228 on the road, so it under-counts by 228. At a true 70 mph the first turns 851 times a minute, the second 832.
What drivers reported
275/40R19 carries 4 complaints. Nobody has filed one naming 295/40R19.